<template>
  <div class="login_container" :style="backcolor">
    <div class="login_box">
      <!-- 头像 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!-- 表单 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script lang="ts">
export default {
  data () {
    return {
      loginForm: {
        username: '',
        password: ''
      },
      loginFormRules: {
        username: [
          { require: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在3到10个字符', trigger: 'blur' }
        ],
        password: [
          { require: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在6到15个字符', trigger: 'blur' }
        ]
      },
      backcolor: 'background-color: #2b4b6b;'
    }
  },
  methods: {
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) {
          return 0
        }
        if (this.checkDangerPass() === true && this.checkDangerAdmin === true) {
          this.$message.error('存在漏洞利用')
          return 0
        }
        if (this.loginForm.username === 'admin' && this.loginForm.password === '123456') {
          this.backcolor = 'background-color: red'
          this.$message.error('想屁吃')
          return 0
        }
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    },
    checkDangerPass () {
      if (this.loginForm.password.search('<') !== -1) {
        return true
      } else if (this.loginForm.password.search('"') !== -1) {
        return true
      } else if (this.loginForm.password.search("'") !== -1) {
        return true
      } else if (this.loginForm.password.search('or') !== -1) {
        return true
      } else if (this.loginForm.password.search('`') !== -1) {
        return true
      }
      if (this.loginForm.password.indexOf('?') !== -1) {
        return true
      }
      return false
    },
    checkDangerAdmin () {
      if (this.loginForm.username.search('<') !== -1) {
        return true
      } else if (this.loginForm.username.search('"') !== -1) {
        return true
      } else if (this.loginForm.username.search("'") !== -1) {
        return true
      } else if (this.loginForm.username.search('or') !== -1) {
        return true
      } else if (this.loginForm.username.search('`') !== -1) {
        return true
      }
      if (this.loginForm.username.indexOf('?') !== -1) {
        return true
      }
      return false
    }
  }
}
</script>
<style lang="less" scoped>
.login_container{
    background-color: #2b4b6b;
    height: 100%;
    display: block;
}
.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 5px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    .avatar_box{
        width: 130px;
        height: 130px;
        border: 1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform: translate(-50%,-50%);
        background-color: #fff;
        img{
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }
    .btns{
        display:flex;
        justify-content: flex-end;
    }
    .login_form{
        position: absolute;
        bottom: 0;
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }
}
</style>
